MP2370
1.2A, 24V, 1.4MHz Step-Down
White LED Driver
MP2370 Rev. 1.03 www.MonolithicPower.com 1
6/29/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP2370 is a monolithic step-down white
LED driver with a built-in power MOSFET. It
achieves 1.2A peak output current over a wide
input supply range with excellent load and line
regulation. Current mode operation provides
fast transient response and eases loop
stabilization. Fault condition protection includes
cycle-by-cycle current limiting and thermal
shutdown.
The MP2370 requires a minimum number of
readily available standard external components.
The MP2370 is available in a TSOT23-6 package
and a TQFN-6 (2mmx2mm) package.
FEATURES
1.2A Peak Output Current
0.35 Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic
Capacitors
Also Work with Cap-less Configuration
Up to 87% Efficiency
0.1A Shutdown Mode
Fixed 1.4MHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.5V to 24V Operating Input Range
0.15V Sense Voltage
Available in a TSOT23-6 Package and a
TQFN-6 (2mmx2mm) package
APPLICATIONS
WLED Drivers
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
All MPS parts are lead-free, halogen free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Quality
ssurance.
“MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
EFFICIENCY (%)
0.1
60
70
80
90
100
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT CURRENT (A)
Efficiency vs
Output Current
Circuit as Figure 1
V
IN
=12V
V
IN
=20V
V
IN
=8V
